Bow shock in Orion Nebula

Bow shock in Orion Nebula

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Caption: Bow shock in Orion Nebula. Optical Hubble Space Telescope (HST) image of the bow shock around the young (T-Tauri) star LL Ori, in the Orion Nebula. This star's bow shock (bright crescent at right of the star, centre) is over a tenth of a light year across. It is created as two gas streams collide. Here, LL Ori's fast stellar wind (the stream of charged particles emitted in all directions by a star), collides with the surrounding gas and dust of the Orion Nebula. The collision causes the gases to glow. A fainter bow shock is at upper right. The Orion Nebula lies about 1500 light years away. Photographed in 1995.

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Keywords: 1995, astronomical, astronomy, astrophysics, bow shock, colliding, collision, cosmology, dust, evolution, gas streams, gases, hst, hubble space telescope, ll ori, optical, orion nebula, orionis, science, solar wind, space, star, star birth, starbirth, stellar formation, t-tauri, wake, wave, wfpc, wfpc2, wide field planetary camera 2, young

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